Spinous process fixator
AssigneeDePuy Synthes Products, Inc.
InventorsFelix Aschmann, Benjamin Barrall, David Chow
Life of this patent
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Abstract
The present invention is directed to an interspinous spacer assembly for implantation and/or affixation between spinous processes of adjacent superior and inferior vertebrae and associated tools and methods for stabilizing the human spine. The interspinous spacer assembly includes a spacer body, a first lateral plate, a second lateral plate and a locking mechanism extending through a channel provided in the spacer body and coupling the first and second lateral plates to the spacer body.
Claims20
An interspinous spacer assembly for insertion into an interspinous space between spinous processes of adjacent vertebral bodies, the assembly comprising:
- a spacer body sized and configured for insertion between adjacent spinous processes, the spacer body including a channel extending therethrough;
- a first lateral plate and a second lateral plate for coupling the spacer assembly to the spinous processes;
- and
- a locking mechanism extending through the channel in the spacer body and coupling the first and second lateral plates to the spacer body, the locking mechanism including a first locking member and a second locking member configured to move relative to each other in a longitudinal direction of the locking mechanism, the second locking member having hollow cylindrical body for receiving a body of the first locking member,
- wherein the channel included in the spacer body includes a protrusion extending from a surface of the channel, the protrusion sized and configured to mate with a corresponding recess provided in the first locking member,
- wherein the second locking member includes an opening along a length of the hollow cylindrical body such that the recess provided in the first locking member is accessible via the opening.
Dependencies are inferred from the claim text.